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808 nm 25 W Fiber Coupled Laser Diode

WAVELENGTH

808 nm

POWER

25 W

FIBER CORE

105/200/400 µm

NA

0.22

Key features

• High-Intensity 25 W CW Output
• Integrated Thermistor
• Integrated 30 dB Feedback Protection
• Flexible 105/200/400 µm Core Selection
• 44% Wall-Plug Efficiency
• Rugged and Compact Industrial Footprint

Applications

• Solid-State Laser Pumping (Nd:YAG / Nd:YVO4)
• Medical Surgical & Dental Systems
• Industrial Material Processing
• Thermal Plate Imaging
• Scientific research
• High-Power Spectroscopy

Product datasheet

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Custom configurations & wavelengths available

Uncompromising performance

The 808 nm 25 W High Power Fiber Coupled Diode Laser is a technical-grade infrared source engineered for high-performance pumping, clinical surgical systems, and industrial materials processing. Operating at the specialized 808 nm wavelength, this module provides the optimized spectral performance required for high-efficiency absorption in Nd-doped solid-state laser crystals, ensuring maximum energy conversion and system stability. Delivering a stable 25 W of continuous-wave (CW) output, the K808 series offers multiple fiber core options (105 µm, 200 µm, or 400 µm), allowing for superior brightness and customizable beam profiles for various system integrations. To ensure absolute reliability, it features integrated 30 dB feedback isolation, protecting the diode from back-reflections in the 1020 nm–1200 nm range. Built with a high 44% electrical-to-optical efficiency and a rugged industrial chassis with standard SMA905 termination, this module is a dependable core for medical platforms and precision laboratory research.

SPECIFICATIONS ( 25°C )SYMBOLUNITK808DAHRN-25.00W
MINIMUMTYPICALMAXIMUM
OPTICAL
DATA(1)		CW Output PowerPoW25——
Center Wavelengthλcnm808 ± 3
Spectral Width (FWHM)Δλnm—36
Wavelength Shift / TempΔλ/ΔTnm/°C—0.3—
ELECTRICAL
DATA		Electrical-to-Optical EfficiencyPE%—44—
Threshold CurrentIthA—1.5—
Operating CurrentIopA——11
Operating VoltageVopV——6
Slope EfficiencyηW/A—2.6—
FIBER
DATA		Core DiameterDcoreμm105 / 200 / 400
Cladding DiameterDcladμm125 / 220 / 440
Numeric ApertureNA——0.22—
Fiber LengthLfm—1—
Minimum Bending Radius—mm50 / 88 / 176
Fiber TerminationSMA905
FEEDBACK
ISOLATION		Wavelength Range—nm1020 ~ 1200
Isolation—dB—30—
OTHERSESDVesdV——500
Storage Temperature(2)Tst°C-20—70
Operating Case Temp(3)Ttop°C15—35
Relative HumidityRH%15—75
(1) Data measured under operation output at 25W @ 25°C.
(2) A non-condensing environment is required for operation and storage.
(3) Operating temperature defined by the package case. Acceptable range is 15°C~35°C, but performance may vary.
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Active thermal management for wavelength stability and consistent output power.

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Do you need a custom laser diode for your application?

We offer custom laser diodes according to your needs, either high-power or low-power versions, fiber-coupled or free-space, specific wavelengths, wavelength-stabilized options, and single or multi-emitter diodes. To discuss your custom laser diode needs, you can contact us by sending an email or using the contact form.

contact@ephotonics.com

+1 418 883 7125

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